{"id":"https://openalex.org/W4411408915","doi":"https://doi.org/10.23919/transcom.2024ebp3169","title":"NICEIR: NLOS Identification of CSI System Based on Enriched Features and Improved Random Forest Algorithm","display_name":"NICEIR: NLOS Identification of CSI System Based on Enriched Features and Improved Random Forest Algorithm","publication_year":2025,"publication_date":"2025-06-18","ids":{"openalex":"https://openalex.org/W4411408915","doi":"https://doi.org/10.23919/transcom.2024ebp3169"},"language":"en","primary_location":{"id":"doi:10.23919/transcom.2024ebp3169","is_oa":false,"landing_page_url":"https://doi.org/10.23919/transcom.2024ebp3169","pdf_url":null,"source":{"id":"https://openalex.org/S2493627025","display_name":"IEICE Transactions on Communications","issn_l":"0916-8516","issn":["0916-8516","1745-1345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4320800604","host_organization_name":"Institute of Electronics, Information and Communication Engineers","host_organization_lineage":["https://openalex.org/P4320800604"],"host_organization_lineage_names":["Institute of Electronics, Information and Communication Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEICE Transactions on Communications","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5112953326","display_name":"Yajie Gao","orcid":null},"institutions":[{"id":"https://openalex.org/I198091727","display_name":"Tianjin Polytechnic University","ror":"https://ror.org/00xsr9m91","country_code":"CN","type":"education","lineage":["https://openalex.org/I198091727"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Yajie Gao","raw_affiliation_strings":["School of Electronics and Information Engineering, Tiangong University,Tianjin,China,300387","School of Electronics and Information Engineering, Tiangong University, Tianjin, 300387, China. And Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, Tianjin, 300387, China"],"affiliations":[{"raw_affiliation_string":"School of Electronics and Information Engineering, Tiangong University,Tianjin,China,300387","institution_ids":["https://openalex.org/I198091727"]},{"raw_affiliation_string":"School of Electronics and Information Engineering, Tiangong University, Tianjin, 300387, China. And Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, Tianjin, 300387, China","institution_ids":["https://openalex.org/I198091727"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5032112829","display_name":"Lijun Lei","orcid":"https://orcid.org/0000-0001-7959-4822"},"institutions":[{"id":"https://openalex.org/I198091727","display_name":"Tianjin Polytechnic University","ror":"https://ror.org/00xsr9m91","country_code":"CN","type":"education","lineage":["https://openalex.org/I198091727"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lijun Lei","raw_affiliation_strings":["School of Electronics and Information Engineering, Tiangong University,Tianjin,China,300387","School of Electronics and Information Engineering, Tiangong University, Tianjin, 300387, China. And Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, Tianjin, 300387, China"],"affiliations":[{"raw_affiliation_string":"School of Electronics and Information Engineering, Tiangong University,Tianjin,China,300387","institution_ids":["https://openalex.org/I198091727"]},{"raw_affiliation_string":"School of Electronics and Information Engineering, Tiangong University, Tianjin, 300387, China. And Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, Tianjin, 300387, China","institution_ids":["https://openalex.org/I198091727"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101520407","display_name":"Weiguang Shi","orcid":"https://orcid.org/0000-0002-5837-8714"},"institutions":[{"id":"https://openalex.org/I198091727","display_name":"Tianjin Polytechnic University","ror":"https://ror.org/00xsr9m91","country_code":"CN","type":"education","lineage":["https://openalex.org/I198091727"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Weiguang Shi","raw_affiliation_strings":["School of Electronics and Information Engineering, Tiangong University,Tianjin,China,300387","School of Electronics and Information Engineering, Tiangong University, Tianjin, 300387, China. And Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, Tianjin, 300387, China"],"affiliations":[{"raw_affiliation_string":"School of Electronics and Information Engineering, Tiangong University,Tianjin,China,300387","institution_ids":["https://openalex.org/I198091727"]},{"raw_affiliation_string":"School of Electronics and Information Engineering, Tiangong University, Tianjin, 300387, China. And Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, Tianjin, 300387, China","institution_ids":["https://openalex.org/I198091727"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5078381267","display_name":"Shuxia Yan","orcid":"https://orcid.org/0000-0002-1991-3526"},"institutions":[{"id":"https://openalex.org/I198091727","display_name":"Tianjin Polytechnic University","ror":"https://ror.org/00xsr9m91","country_code":"CN","type":"education","lineage":["https://openalex.org/I198091727"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shuxia Yan","raw_affiliation_strings":["School of Electronics and Information Engineering, Tiangong University,Tianjin,China,300387","School of Electronics and Information Engineering, Tiangong University, Tianjin, 300387, China. And Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, Tianjin, 300387, China"],"affiliations":[{"raw_affiliation_string":"School of Electronics and Information Engineering, Tiangong University,Tianjin,China,300387","institution_ids":["https://openalex.org/I198091727"]},{"raw_affiliation_string":"School of Electronics and Information Engineering, Tiangong University, Tianjin, 300387, China. And Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, Tianjin, 300387, China","institution_ids":["https://openalex.org/I198091727"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5113262117","display_name":"Zhimou Li","orcid":null},"institutions":[{"id":"https://openalex.org/I198091727","display_name":"Tianjin Polytechnic University","ror":"https://ror.org/00xsr9m91","country_code":"CN","type":"education","lineage":["https://openalex.org/I198091727"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhimou Li","raw_affiliation_strings":["School of Electronics and Information Engineering, Tiangong University,Tianjin,China,300387","School of Electronics and Information Engineering, Tiangong University, Tianjin, 300387, China. And Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, Tianjin, 300387, China"],"affiliations":[{"raw_affiliation_string":"School of Electronics and Information Engineering, Tiangong University,Tianjin,China,300387","institution_ids":["https://openalex.org/I198091727"]},{"raw_affiliation_string":"School of Electronics and Information Engineering, Tiangong University, Tianjin, 300387, China. And Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems, Tianjin, 300387, China","institution_ids":["https://openalex.org/I198091727"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5112953326"],"corresponding_institution_ids":["https://openalex.org/I198091727"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.19303868,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"E108-B","issue":"12","first_page":"1400","last_page":"1411"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13717","display_name":"Advanced Algorithms and Applications","score":0.9412999749183655,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T13717","display_name":"Advanced Algorithms and Applications","score":0.9412999749183655,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12111","display_name":"Industrial Vision Systems and Defect Detection","score":0.9125000238418579,"subfield":{"id":"https://openalex.org/subfields/2209","display_name":"Industrial and Manufacturing Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/non-line-of-sight-propagation","display_name":"Non-line-of-sight propagation","score":0.881222665309906},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8797426223754883},{"id":"https://openalex.org/keywords/random-forest","display_name":"Random forest","score":0.7101519107818604},{"id":"https://openalex.org/keywords/identification","display_name":"Identification (biology)","score":0.705393373966217},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5038079619407654},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.33691948652267456},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.17789074778556824},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.08442777395248413}],"concepts":[{"id":"https://openalex.org/C154910267","wikidata":"https://www.wikidata.org/wiki/Q1740982","display_name":"Non-line-of-sight propagation","level":3,"score":0.881222665309906},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8797426223754883},{"id":"https://openalex.org/C169258074","wikidata":"https://www.wikidata.org/wiki/Q245748","display_name":"Random forest","level":2,"score":0.7101519107818604},{"id":"https://openalex.org/C116834253","wikidata":"https://www.wikidata.org/wiki/Q2039217","display_name":"Identification (biology)","level":2,"score":0.705393373966217},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5038079619407654},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.33691948652267456},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.17789074778556824},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.08442777395248413},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.23919/transcom.2024ebp3169","is_oa":false,"landing_page_url":"https://doi.org/10.23919/transcom.2024ebp3169","pdf_url":null,"source":{"id":"https://openalex.org/S2493627025","display_name":"IEICE Transactions on Communications","issn_l":"0916-8516","issn":["0916-8516","1745-1345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4320800604","host_organization_name":"Institute of Electronics, Information and Communication Engineers","host_organization_lineage":["https://openalex.org/P4320800604"],"host_organization_lineage_names":["Institute of Electronics, Information and Communication Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEICE Transactions on Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.550000011920929,"display_name":"Life in Land","id":"https://metadata.un.org/sdg/15"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":29,"referenced_works":["https://openalex.org/W1544232871","https://openalex.org/W1927744280","https://openalex.org/W1979018848","https://openalex.org/W1987869000","https://openalex.org/W1989259731","https://openalex.org/W2003253977","https://openalex.org/W2046140035","https://openalex.org/W2124216931","https://openalex.org/W2143228105","https://openalex.org/W2158698691","https://openalex.org/W2522695908","https://openalex.org/W2891312406","https://openalex.org/W2895196813","https://openalex.org/W2924713284","https://openalex.org/W2944954104","https://openalex.org/W2972944393","https://openalex.org/W3132318667","https://openalex.org/W3175512644","https://openalex.org/W3205693253","https://openalex.org/W4210786994","https://openalex.org/W4366377778","https://openalex.org/W4377290276","https://openalex.org/W4382119007","https://openalex.org/W4385258989","https://openalex.org/W4390674547","https://openalex.org/W4391342798","https://openalex.org/W4400111406","https://openalex.org/W4401749122","https://openalex.org/W4402040732"],"related_works":["https://openalex.org/W2172272784","https://openalex.org/W2003817535","https://openalex.org/W4307436769","https://openalex.org/W4323793210","https://openalex.org/W2366306259","https://openalex.org/W3101720559","https://openalex.org/W2143447014","https://openalex.org/W2218045119","https://openalex.org/W3172283447","https://openalex.org/W2110478555"],"abstract_inverted_index":{"Non-line-of-sight":[0],"(NLOS)":[1],"identification":[2,13,23,43,112],"is":[3,63,92],"a":[4,38],"major":[5],"challenge":[6],"for":[7,70,111,119],"reliable":[8],"WiFi-based":[9],"sensing.":[10],"Existing":[11],"NLOS":[12,42,102],"methods":[14,116],"commonly":[15],"encounter":[16],"limited":[17],"statistical":[18,61],"features,":[19],"rely":[20],"on":[21,50],"pre-designed":[22],"thresholds,":[24],"and":[25,53,76,99,125,143],"suffer":[26],"from":[27,104],"large":[28],"computational":[29,141],"complexity.":[30],"To":[31],"address":[32],"these":[33],"challenges,":[34],"this":[35],"paper":[36],"presents":[37],"novel":[39,60],"method":[40],"called":[41],"of":[44],"channel":[45],"state":[46],"information":[47],"system":[48],"based":[49],"enriched":[51],"features":[52,98],"improved":[54,85],"random":[55,86],"forest":[56,87],"algorithm":[57,88],"(NICEIR).":[58],"A":[59],"feature":[62,68,120],"designed":[64],"to":[65,94,122],"enrich":[66],"the":[67,96,109,135],"set":[69],"recognition":[71,138],"by":[72],"incorporating":[73],"amplitude":[74],"variance":[75,79],"phase":[77],"difference":[78],"across":[80,130],"all":[81],"subcarriers.":[82],"Furthermore,":[83],"an":[84],"with":[89],"C4.5":[90],"architecture":[91],"proposed":[93],"train":[95],"combined":[97],"accurately":[100],"discriminate":[101],"conditions":[103],"incoming":[105],"undetermined":[106],"signals,":[107],"eliminating":[108],"need":[110],"thresholds.":[113],"Two":[114],"pruning":[115],"are":[117],"developed":[118],"selection":[121],"reduce":[123],"complexity":[124],"prevent":[126],"overfitting.":[127],"Experimental":[128],"results":[129],"three":[131],"different":[132],"scenarios":[133],"demonstrate":[134],"method's":[136],"high":[137],"accuracy,":[139],"low":[140],"complexity,":[142],"broad":[144],"applicability.":[145]},"counts_by_year":[],"updated_date":"2025-12-05T23:21:25.405358","created_date":"2025-10-10T00:00:00"}
